#if 1

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>  //define O_WRONLY and O_RDONLY

#include <unistd.h>         /* System V */
#include <sys/ioctl.h>      /* BSD and Linux */
#include <stropts.h>        /* XSI STREAMS */

#include "../inc/type.h"
#include "../inc/igpio.h"
#include "../inc/ii2c.h"
//#include <i2c-dev.h>
#include <linux/i2c-dev.h>

#define __use_imx_i2c__     0
#if __use_imx_i2c__
int ii2c_com_init(const char*i2c_node_name,uint8 i2c_addr, int *pfd)
{
    int fd=-1;
    int err;

    fd = open(i2c_node_name, O_RDWR);
    if(fd < 0)
    {
        log_printf(LOG_ERR,I_NOUSED,"i2c open %s err.\n",i2c_node_name);
        return -1;
    }

	err = ioctl(fd, I2C_SLAVE, i2c_addr);
	if (err < 0)
	{
	    log_printf(LOG_ERR,I_NOUSED,"can't set i2c dev slave addr.\n");
        close(fd);
        return -1;
	}

    *pfd = fd;
}

uint8 i2c_write(int fd, uint8 reg, uint8 val)
{
    int   retries;
    uint8 wdata[2];
    uint8 retLen = 0;

    if(fd<0)
        return -1;

    wdata[0] = reg;
    wdata[1] = val;

    for (retries = 2; retries; retries--)
    {
        retLen = write(fd, wdata, 2);
        if(retLen == 2)
        {
            return 0;
        }

        log_printf(LOG_DEBUG,I_NOUSED,"ret writeLen = %d\n",retLen);
        usleep(1000 * 2);
    }

    return -1;
}

uint8 i2c_read(int fd, uint8 reg, uint8 *pval)
{
    int   retries;
    uint8 retLen=0;

    if(fd<0)
        return -1;

    for (retries = 2; retries; retries--)
    {
        retLen = write(fd, &reg, 1);

        if(retLen == 1)
        {
            if (read(fd, pval, 1) == 1)
            {
                return 0;
            }
        }

        log_printf(LOG_DEBUG,I_NOUSED,"ret writeLen = %d\n",retLen);
        usleep(1000 * 2);
    }

    return -1;
}
#endif//__imx_i2c__


#endif